大约有 42,000 项符合查询结果（耗时：0.0333秒） [XML]
What is the parameter “next” used for in Express?
...el with an async findOne():
function loadUser(req, res, next) {
if (req.params.userId) {
Users.findOne({ id: req.params.userId }, function(err, user) {
if (err) {
next(new Error("Couldn't find user: " + err));
return;
}
req.user = user;
next();
});...
Creating a new DOM element from an HTML string using built-in DOM methods or Prototype
..., then reaching into the template's .content property.
Examples:
/**
* @param {String} HTML representing a single element
* @return {Element}
*/
function htmlToElement(html) {
var template = document.createElement('template');
html = html.trim(); // Never return a text node of whitespac...
How to add dividers and spaces between items in RecyclerView?
...reviously in the ListView class, using the divider and dividerHeight parameters:
41 Answers
...
Why can't you modify the data returned by a Mongoose Query (ex: findById)
...ance, you can call lean() on the query chain like so:
Survey.findById(req.params.id).lean().exec(function(err, data){
var len = data.survey_questions.length;
var counter = 0;
_.each(data.survey_questions, function(sq){
Question.findById(sq.question, function(err, q){
...
EF Code First: How do I see 'EntityValidationErrors' property from the nuget package console?
...alidation Messages to the generated exception
/// </summary>
/// <param name="context">The context.</param>
private void SaveChanges(DbContext context) {
try {
context.SaveChanges();
} catch (DbEntityValidationException ex) {
StringBuilder sb = new StringBui...
Using PUT method in HTML form
...>, i.e. send a GET request.
Instead, many frameworks simply use a POST parameter to tunnel the HTTP method:
<form method="post" ...>
<input type="hidden" name="_method" value="put" />
...
Of course, this requires server-side unwrapping.
...
Detect blocked popup in Chrome
...
This worked for me:
cope.PopupTest.params = 'height=1,width=1,left=-100,top=-100,location=no,toolbar=no,menubar=no,scrollbars=no,resizable=no,directories=no,status=no';
cope.PopupTest.testWindow = window.open("popupTest.htm", "popupTest", cope.PopupTest.pa...
C# How can I check if a URL exists/is valid?
... it does not return server or protocol errors
/// </summary>
/// <param name="url">The path to check</param>
/// <returns></returns>
public bool UrlIsValid(string url)
{
try
{
HttpWebRequest request = HttpWebRequest.Create(url) as HttpWebRequest;
...
Creating PHP class instance with a string
...123
And variable functions & methods.
$func = 'my_function';
$func('param1'); // calls my_function('param1');
$method = 'doStuff';
$object = new MyClass();
$object->$method(); // calls the MyClass->doStuff() method.
...
Python Matplotlib Y-Axis ticks on Right Side of Plot
...plt
plt.subplot2grid((3,2), (0,1), rowspan=3)
plt.plot([2,3,4,5])
plt.tick_params(axis='y', which='both', labelleft='off', labelright='on')
plt.show()
It will show this:
share
|
improve this ans...